With the increasing complexity of building technologies and construction methods and growing Government regulations, a greater demand for professional caliber contractors is evident. People are needed who can accept responsibility, control the cost and the quality of services they perform.

By requesting an ORAC member to perform the work directly, the owner, consultant, specifier or general contractor will gain true and long-lasting value and Industry expertise.


  • Access to a network of over 100 like-minded HVAC contractors
  • Attendance and voting rights at the ORAC Annual General Meeting
  • Attendance at all social/networking events
  • Access to ORAC’s technical resources including TSSA pre-approved P-drawings, brazing procedures and testing facilities
  • Intimate access to ORAC associate members and suppliers
  • Attendance at all training/educational events
  • Eligible to become a member of the ORAC board
  • Industry exposure to potential clients via ORAC’s website

Together, these benefits offer financial savings which equate to thousands of dollars for an average company.


Our Contractors

Absolute Alliance HVAC Solutions Absolute Alliance HVAC Solutions provides HVACR services in installation, maintenance and service in the Toronto area.
Ainsworth Inc. Based in Toronto, Ainsworth operates across Canada and is a leading multi-trade company that offers technical trade services like HVAC, mechanical, electrical, data cabling, and building and industrial automation.
Airco Ltd. Airco Ltd. specializes in refrigeration, HVAC and related services across a variety of sectors.
Ambient Mechanical Ltd Since 1982 Ambient Mechanical Ltd has been taking care of all our clients' HVAC needs in commercial offices, industrial, institutional and multi-residential buildings.
Applied Systems Technologies Inc. Applied Systems Technologies Inc. provides a variety of HVACR services for commercial properties in the GTA.
Art Blake Refrigeration Limited Operating out of London, Ontario, Art Blake Refrigeration Ltd. offers HVACR services including installations, maintenance, emergency services and equipment audits.
B.I.C. Mechanical Limited
Beebe Mechanical Systems Ltd. A family-owned business since 1946, Beebe Mechanical Systems Ltd, located in Thunder Bay, offers installation and repair services for air conditioning, heating and mechanical systems.
Berg Chilling Systems Inc. Berg Chilling Systems designs and manufactures industrial thermal process control systems for a wide range of applications using both natural and HFC refrigerants.
Bering Mechanical Ltd. Bering Mechanical Ltd. specializes in design/build and lump sum projects for new construction, tenant work, renovations and retrofit of commercial and industrial facilities.
Black & McDonald Black & McDonald is an integrated, multi-trade prime contractor serving government, institutions, industry and commerce across Canada, the US and overseas.
Boydaire Ltd. Boydaire is a heating contractor located in Ajax, Ontario.
Buhler Mechanical Service Ltd. Industrial, commercial and residential refrigeration, air conditioning, heating, and sheet metal. Sales, serviced and installation.
Canem Systems Canem Systems uses the latest technologies to deliver projects on time with a level of excellence you can trust. You can rely on us as your contractor because we’ve been putting relationships first for nearly 60 years.
Carmichael Engineering Ltd.
Carrier Enterprise Canada LP
Chadair Systems Inc.
Cimco Refrigeration Inc.
Circa Refrigeration Inc. Commercial/Industrial Refrigeration & HVAC service and installation
Climatech Inc.
Clow Darling Limited Commercial, Industrial, Refrigeration, Air Conditioning, Plumbing, Heating service and installation.
Coldworks Refrigeration Inc.
Complete Comfort Niagara Inc. Complete Comfort Niagara Inc. has earned the reputation among its customers, as a leading Heating, Ventilation, Air Conditioning & Refrigeration Contractor in the Niagara Region.
Conestoga Mechanical Inc. We provide 24hr/7day service in HVAC, serving Industrial, Commercial, Institutional and Multi Residential. We employ over 20 highly trained professionals.
Continental Air Systems Inc.
Contrast Heating & Air Conditioning Ltd.
Cool Check Commercial HVAC Contractor of Choice
Coolmark Mechanical
Coral Engineering Limited
Cyber Air Systems Inc. Commercial/Industrial refrigeration, air conditioning and heating service and installation, chiller installation and service, and certified brazing.905-569-8040
Daikin Applied Canada Inc.
DCS Innovative HVAC-R Solutions
Demand Air Systems Ltd.
Dilfo HVAC Services Commercial, industrial and institutional heating, air conditioning, ventilation and refrigeration. We provide specialty equipment, maintenance, service and construction.
Donair Heating & Air Conditioning Service Ltd.
Drennan Refrigeration Inc. Industrial Refrigeration Contractors/Refrigeration Design Build Engineers/Industrial Refrigeration Supplies.
Dunlis Mechanical Services Ltd. Focused on commercial/industrial refrigeration, air conditioning, heating preventative maintenance/repair. Design/build/installation of sheet metal.
E.S. Fox Limited
ENGIE MultiTech Ltd. Build, install & maintain mechanical systems such as HVAC, Plumbing, and Sheet Metal for Industrial, Commercial, Institutional and Biotech facilities
Environmental Systems Corporation
Fahrhall Mechanical Contractors Limited Provide reliable heating, cooling, plumbing and air quality service and installation to residential, commercial and industrial customers in the Windsor-Essex-Kent Counties. Top brand equipment, professional installation, and service in the heating and cooling industry.
General Air Systems Inc.
Gordon Wright Electric Limited
Grayco Air Air Conditioning/Refrigeration/Heating/Ventilation/Pneumatics/Electrical.
H.V.A.C. Consultants Inc.
Heco Limited Heco Limited has now had over 20 years of success in the industrial and commercial refrigeration, cooling and heating industry.
Honeywell Honeywell is building a smarter, safer, and more sustainable world. That’s the Power of Connected. That’s the Power of Honeywell.
Hubbard Mechanical Incorporated Commercial/Industrial Refrigeration, Air Conditioning & Heating Service and Installation.807-473-7792
HVAC Dimensions Ltd. Commercial contractor specializing in VAV/VVT, computer rooms, BAS, Mitsubishi City Multi and Fujitsu ductless systems, VFD's, make-up air units, boilers and pneumatics.
Industrial Refrigerated Systems Inc.
J. Melvin Associates
J.F. Mechanical Air Systems Inc.
J.L. Refrigeration Inc. Supermarket/Commercial Refrigeration & HVAC, Service and Installation.
J.S. Mackay Heating Incorporated
Jade Logic Building Technologies Inc.
Johnson Controls Inc.
Kelson Service Inc. Specializing in optimizing each stage of the building lifecycle, Kelson provides innovative practical results for your engineering, commissioning, facility maintenance, emergency services and Energy needs.
Lakehead Polar Air Limited
Lancaster Group Inc. Fabrication, sheet metal, HVAC and mechanical services for industrial, commercial, institutional (ICI) and residential clients.
Laser Heating & A/C Inc.
Lekter Industrial Services Inc.
M.A.S. Mechanical Ltd.
M.T.I. Mechanical Trade Industry Ltd.
Magtech Mechanical Systems
Main Air Systems Inc.
Major Air Systems Ltd.
Mapleridge Mechanical Contracting Inc.
Margell Mechanical Contractors Ltd.
Marshall Mechanical Inc.
Mayfair Systems
MDF Service
Mechanical Aire Services Ltd. (905) 629-4494
Metal-Air Mechanical Systems Ltd.
Mike Witherell Mechanical Ltd.
Mitchell Refrigeration Limited
Modern Niagara Group of Companies
N.L. Clarke Service Ltd., cob Trane Service Agency Commercial/Industrial refrigeration, air conditioning, heating and controls service, sales and installation.
National Mechanical Air Ltd.
Neelands Group Limited Neelands Group CO2 refrigeration and cooling systems provide a high performing resilient solution. Let us show you that you can improve your bottom line while meeting your sustainability objectives.
Nelco Mechanical Limited Refrigeration, HVAC, Plumbing, Heating, Electrical and Service. Commercial/Industrial/Institutional in the ICI Sector.
Nexus Mechanical Group Inc.
Nortek Mechanical Services
Northern Air Environmental Technologies Inc. Since 1968 Northern Air has been a leading provider of design-build projects, and the continued care of buildings with our extensive maintenance programs. Serving the ICI & Multi-Res sectors.
Nortown Air Systems Commercial/Industrial Heating & Cooling, Service & Installation.
Oakwood Mechanical Systems Ltd.
OPUS Mechanical Services Ltd. Based in Vaughan, Ontario OPUS is a full service Mechanical Contractor specializing in Plumbing, Sheet Metal, Ventilation, Air Conditioning & Refrigeration skilled trade offerings in the Industrial, Commercial & Institutional
Pamar Mechanical Ltd.
Penn Refrigeration Ltd.
Pro-Tech Mechanical Services Ltd.
Pure Mechanical Pure Mechanical - commercial HVAC contractors in Oshawa, ON. Pure Mechanical provides commercial and industrial HVAC services across Oshawa, Pickering, Ajax, GTA
R & R Mechanical Group Inc. R & R Mechanical Group Inc. specializes in refrigeration, heating, and cooling.519-465-1845
R.E. Corner Refrigeration
ReadAir Mechanical Services Ltd. Service excellence above all. Heating, ventilation, air conditioning, and refrigeration (HVAC/R) for the industrial, commercial and institutional sectors
Reg Air Inc.
Responsive Multi-Tech Services Commercial/industrial refrigeration, air conditioning and heating service and installation.
RHA Environmental Inc.
Robcan Mechanical
Roberts Onsite Inc.
Romo Air Systems
Roper Controls Inc. Roper Controls is a union HVAC/R contractor with union refrigeration mechanics, gas fitters, electricians and pipe fitters. We have been providing exceptional service since 1989. RCI provides quality sales & service in all areas of the HVAC/R trade Canada wide.
Rosetown Central Refrigeration and A/C Commercial/Industrial/Institutional refrigeration, air-conditioning, heating, lab equipment – Service, Maintenance, Installation & Design
S & S Bolton Electric Inc.
S.I.G. Mechanical Services Limited
Sensible Heating & Air Conditioning Ltd.
Servocraft Limited ICI Sector / Electrical & Mechanical Contractors and Engineers
Snow's HVAC Services Sales and Service of Commercial and Industrial Heating, Ventilation, Air Conditioning and Refrigeration equipment.
Spectrum Mechanical Spectrum Mechanical is a leading provider of residential and commercial full mechanical services, specializing in retrofits and construction projects. Our technicians install and service sheet metal and duct work, plumbing piping, furnaces, central air conditioning systems, VRF systems, fireplaces, boilers, chillers, water heaters and more. With over 20 years of residential and commercial HVAC and Plumbing experience, let us show you how we can help.
Springbank Mechanical Systems Ltd. Ontario’s Premier Shopping Centre/Retail Specialist HVAC Contractor
Standard Mechanical Systems Ltd. Commercial Air Conditioning, Heating, Refrigeration & Energy Management Service & Installation. In business 44 years with 35 Offices/Depots across Canada
T & M Mechanical Limited
Temp Air Control
The E.A. Group Engineering, Design Build & Service Contractors for Mission Critical Mechanical & Electrical Systems for the Data Centre Industry
The Plan Group
The State Group
Thermal Mechanical Systems Incorporated
Thermal Process Systems Inc. (Thermecs)
Trane Canada ULC Commercial HVAC Equipment, Earthwise Systems, Industrial Refrigeration, HVAC Service and Installation, Controls and Building Automation Services.
Trans Air Mechanical Ltd. Commercial/Industrial; Air Conditioning, Heating, Refrigeration, Humidification, Sales, Service, Installation.
Tri-Air Systems Commercial/Industrial heating, air contioning and refrigeration, service, maintenance and installation.
Weiss Service Associates Inc.
Westaire Air Conditioning & Heating Ltd.
Wintech Air Systems Inc.
Xtra Mechanical Limited Commercial/Industrial Heating, Ventilation, Air conditioning & Controls Service and Installation